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Depression pedals through Central India

The well-marked low pressure area that lay over Chhattisgarh and adjoining areas underwent a round of intensification and is now a depression. It will move west/southwestwards and weaken gradually in the next few days. Under its influence heavy rains will occur over Madhya Maharashtra, south Madhya Pradesh and Konkan Goa. This will be the only major rain bearing system for the core Monsoon regions. In the meantime, a Super Typhoon “SOUDELOR”, in the west Pacific seems to intensify rapidly and thereby gradually modulating the cross equatorial flow patterns close to south Bay, bringing a change in Monsoonal flows.

With regards to TN, isolated convective rains to continue in north interior along with coastal districts.

Chennai to remain partly cloudy with maximum close to 34-35 C, with a slight possibility of rains towards evening/night.

1,249 thoughts on “Depression pedals through Central India”

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At times,it is better to watch the torrents of comments from the sidelines!! Thoroughly enjoyed reading EACH AND EVERY comment…thanks, friends.

It is people like YOU who keep weather interesting. Instead of saying “it’s raining”, the hyper-excitable comments make this blog TOO addictive! Thanks again!!

As for me, my RG consists of an old bottle and a ‘mug’..figures from my house were ~ 7 cms which is not too unbelievable considering the intense localized heat build up in that part of T Nagar, and the subsequent release of all that pent up heat in the form of severe TS.

And people like RS Rao, sitting in Greenland or Spitzbergen or Antarctica or somewhere, yet predicting Chennai weather within an accuracy of ~100%..what can we say except, Keep Predicting!!

Exactly as I’d said earlier, the last and the best storm flanked south to cover the entire of Chennai, widespread Rains is Chennai as a result, we can safely say city got an average of 4-5cm, although Nunga was a bit on the lower side comparatively.One of the best nights ever! Although it was 65 mm here, there was no major flooding which meant rainwater had enough time to percolate into the ground. This is a major boost for the ground water levels.
The water in my rg was damn cool and refreshing.. even used it to wash my face! It was like water straight from the refridgerator 🙂

August is worse than July till Now. No squalls or Major Storms Hitting us.

After i posting this yesterday evening storms are very monsterous one. I expected this and Hopefully got it. yesterday north chennai battered from Single squall reaching close to 60mm and South Chennai had three squalls crossing which results up to 65- 70mm.
Wat a Heavy Rains True colours of August which resulting widespread showers in and around Chennai.

I hope everyone is monitoring this, the trough merged with monsoon axis dipping to TN. GFS is showing this for past few days. I know we have to wait. But if this happens, it is going to 100 mms at many places in TN thats for sure…….!

Gud start to August for Meena and Nunga and all parts of chennai and surroundings.
RG are busy these days collecting severe intense TS rain droplets.
power came by 230am in chilapakkam but happy that it rained.

Kamayani Express, headed for Uttar Pradesh’s Varanasi from Mumbai, was derailed near Harda town, 160km south of state capital Bhopal, just before midnight. Moments ago, the Janata Express (13201) en route to Mumbai from Patna had also derailed at the same spot.

The mishap took place at Kudwa, about 18km from the district headquarters Harda, which is between Bhirangi and Khirakia railway stations.

200 hpa velocity potential anomaly for the month of july!! JUNE was completely dominated by intraseasonal wave so there was no clear ENSO signal but tis july showed the clear impact of ELNINO in indian ocean

Save this image.. its a lovely one. Entire 20 km circle is filled with atleast 3-4 cm rains, with some places getting more than 8 cm! Going by this , southern parts of Adyar and Thiruvanmiyur would have received more than 70 mm

Chennai Lake Areas get highest rains of the year ending 8.30 am on 05.08.2015. Atlaast they generate some inflow.
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The rains were widespread, north,south, west and central chennai got rains. Best day for chennai. Groundwater sure to be increased.

these rains are some consolation. not at all enough. the core city is left high and dry. 3 centimeter not all that big. we need quite a few 5 centimeter + till 30th september. The NEM has to bring at least 10 + for quite a few spells to bring back the water table to a comfortable level.

As lakes are getting somewhat better rains, inflow for another 2 days could be good. we hope for more such widespread spells particularly in nights which is quite common in august/sep. In a way SWM never fails in chennai and we are getting closer to 50 centimeters in 3 months.

we can take official imd readings just for calculation purpose only, not as real reflection of rains chennai surrounding got, TBM and surrounding areas, like pallavaram, chrmpet, madambakkam should have also reached the max amounts, y’day night it poured in 3 sessions, , i’m sure even some other areas in chennai surroundings in all directions, should have got more rains, not only this time, but every time, surpassing official readings,

Chennai’s wettest day in last 4 years, TN rainfall ending 8.30 am on 18.10.2014
The trough of low over southwest Bay of Bengal off Sri Lanka coast now runs from Sri Lanka coast to Tamil Nadu coast with a cyclonic circulation alo ft over south Tamil Nadu coast and extends upto 3.1 kms a.s.l.

Conditions very much perfect for intense Thunderstorms today. Some low level clouds started to form over west of Chennai.
Heavy Rains possible by evening/night over North Tamilnadu and some places over south interiors.

Yesterday’s sea breeze front was quite dense and thick, and as it continued to creep inland , it triggered some overhead pop ups and interacted with one tower between Tbm and cgl and intensified the cell..

Tis 2015 may end up as an unique year if positive iod fails to occur in indian ocean even after a strong elnino in pacific.. indian oceanic conditions failed to respond to ENSO so far although we could see the atmospheric response of elnino in indian ocean ..so by all means tis may definitely light up a fresh debate among global experts on IOD whether it is the enso component of indian ocean or not..

Actually troughs are not an immediate response to heating though, a lot many things come into action. Air subsidence can also lead to heating , there it becomes a ridge rather. Troughs form with relatively lesser pressure than the environment. They can also be seen at mid or upper levels, irrespective of surface conditions. Climatology of a place and prevailing winds are also important.

OMG…what’s really happening??/Why MJO again and again trying to enter Indian ocean despite strong Elnino forecast that too under neutral IOD??

As per latest MJO forecast, all models indicating MJO to recurve back towards IO especially around Phase 2 by 3rd week August. This MJO phase 2 has special feature as Chennai-rain maker (don’t know about the mechanism, but we already seen during July 2nd half explosive TSs).

So from august 3rd week onwards there will be highest probability for Core-Chennai to receive continuous “explosive electric VS-TSs” till the MJO weakens.

Without proper policies in places (due to several reasons, which most of us are aware of), it is scary to think what can happen in Chennai..crucial infrastructural decisions are simply being put off or postponed..and once 2016 election dates are announced, no work can legally happen..too bad..

Lol I hope Komen’s grandchild doesn’t ruin Mumbai yet again..that city will crumble completely..it is hard to describe Mumbai in rains..doors get jammed..everywhere is squishy..moss and mold everywhere..and every breath you take is almost similar to a wheezing kind of feeling..

Yes, all the models are really struggling with IOD forecast. Most of them expecting strong positive(0.8) in August but till now IOD is going in reverse direction. With mjo entering IO in coming weeks we can forget about positive IOD for next few weeks.

but season already entered in 2nd half, where southern India will receive bulk of the rains. This cloud pulling might be due to distant WP-typhoon (+distant ER). This cloud pulling will be weakened drastically once WP-typhoon weakens after making landfall only to set up much needed WC/NW BOB-depression 🙂

Climatologically ther will be a break phase between aug 7th and 15th ..If it miss tat time period, aug 14th to aug 18th will be a break period.. experts call tis as “mid august break”.. so tis year it may b right with 1st case if we consider the ongoing conditions… wondering how those experts observed all tis and documented even before the satellite era

it was possible because mother nature remained unpolluted those days and the monsoon wasn’t that eractic unlike now. If we all remember, until late 90s before the high raise buildings started appearing, the rainfall pattern was very consistent with chennai. how many agree with me.

Chennai wont have any break in rains irrespective how monsoon behaves. We have again gone into Daily Rains slot. Like the July 3rd and 4th week rains. This time there is no depression. But Chennai will get rains.

One interesting observation regarding cyclones was that ,they found that cyclones have a spiralling nature, just by looking at the overall vegetation fall impacted by cyclones over hundreds of km. Those days there wasn’t a radar nor satellites..